Student{40 s and artist{40 s paint brushes

ABSTRACT

To enable the usual ferrule of a student&#39;&#39;s or artist&#39;&#39;s painting brush to be made of a plastics material, and to provide for secure anchorage of the usual hair or bristle tuft into said ferrule, the latter accommodates a metal insert which surrounds one end of the tuft and is firmly located in the ferrule, such insert constituting an element to which the tuft can be reliably adhered.

United States Patent 9 Karl Aug. 14, 1973 56] References Cited UNITEDSTATES PATENTS 573,711 12/1896 Schuck 15/192 1,694,364 12/1928 Albright,3d 15/192 2,122,980 7/1938 3,432,874 3/1969 3,641,611 2/1972 PrimaryExaminerPeter Feldman Attorney-Kenwood Ross and Chester Eli 1 1a yiriABSTRACT To enable the usual ferrule of a students or artist's paintingbrush to be made of a plastics material, and to provide for secureanchorage of the usual hair or bristle tuft into said ferrule, thelatter accommodates a metal insert which surrounds one end of the tuftand is firmly located in the ferrule, such insert constituting anelement to which the tuft can be reliably adhered.

1 Claim, 5 Drawing Figures 1 STUDENT'S AND ARTIST'Q PAINT BRUSHES Thisinvention concerns students and artists painting brushes.

Students and artists painting brushes normally comprise a handle that iscomfortable to hold in the hand, a ferrule fastened to the handle and atuft of hairs or bristles inserted securely in the ferrule. It is usualfor the handle to be made from wood and the ferrule to be made fromsheet metal. According to the shape, there are two general types, namelyround brushes and flat brushes. In the case of round brushes it hasalready been proposed to produce both the handle and the ferrule from aplastics material. Polystyrene has been used as such material.

Polystyrene ferrules are, however, not resistant to corrosive substanceswhich are often contained in paint. This couldbe combated by using, forthe ferrule, a plastics material which resists the corrosive substancesin the paint. Consequently, thought could be given to producing theferrule from polyethylene or polypropylene. However, this has not beenpracticable because hitherto it has not been possible to stick the tuftof hair or bristles fast in a polyethylene or polypropylene ferrule. Toremedy this and, in addition, to ensure that the plastic ferrule cansubsequently be coldformed to enable it to be brought into the shape ofa flat brush, is the object of the invention.

With this object in view, thepresent invention provides a students orartists painting brush comprising a handle, a ferrule of plasticsmaterial secured'to one end of said handle, a bristle tuft secured byone end into said ferrule, and a metal insert located in said ferrule,and surrounding said one end of said bristle tuft, and serving to anchorsaid bristle tuft to said ferrule.

The tuft of hair or bristles can be securely anchored to the metalinsert by adhesion, that is to say by glueing-in, so that, since themetal insert is located securely in the ferrule, the tuft itself isconnected virtually nonreleasably to the latter. By means of the metalinsert, the prerequisite is provided that the tuft of hair or bristlescan be fastened satisfactorily in the plastics ferrule.

Furthermore, if the ferrule consists of a paintresistant material, forinstance of the nature of polypropylene or of the co-polymer known underthe trade name Hostaformf' the problem which hitherto seemedinsuperable, namely that of providing a corrosion-resistant plasticsferrule in whichthe tuft of hair or bristles is secured by adhesion, issolved.

A design which is particularly favourable in production is achieved ifthe plastics ferrule is designed as a body of rotation having at leastone tuft-insertion aperture in its free end.

From such a plastic ferrule, formed as a body of revolution, a flatbrush ferrule, can be obtained in a simple way, in accordance with afurther feature of the invention, by the plastics ferrule, together withthe metal insert and the inserted (more especially glued-in) tuft ofhair or bristles, is cold-formed to the desired flattened configuration.In this connection it is particularly advantageous if the metal insertis in the form of a circular ring, tube or cylinder.

The invention will be described further, by way of example, withreference to the accompanying drawings,

in which:

FIG. 1 illustrates a conventional or known form of flat brush having asheet metal ferrule and a wooden handle, the brush being shown in afront view and a side view;

FIG. 2 is a part sectional side view showing diagrammatically, aplastics handle and a plastics ferrule, being components of a paintingbrush conforming to the present invention;

FIG. 3 is a part-sectional side view, of the ferrule of FIG. 2, thisfigure showing that the ferrule incorporates, in the holding region ofthe tuft of hair or bristles (not shown), a circular metal insert;

FIG. 4 is an enlarged fragmentary sectional view showing details of theupper part of the ferrule shown in FIG. 3; and

FIG. 5 illustrates the eventual or finished form of the brush, the upperpart of which is shown in a front view and a side view.

Referring firstly to FIG. 1, in conventional or known forms of studentsor artists painting brushes it is customary to work the tufts of hair orbristles into a metal ferrule I and to connect the latter securely to ahandle 2 made of wood.

This principle of construction has been retained in the case of brusheshaving plastics handles in accordance with the invention. As shown inFIG. 2, a ferrule la is securely mounted, by a spigot and socketconnection, on the plastics handle 2a. The ferrule la is designed as abody of revolution.

Located securely in the holding region 4 of the tuft 5 of hair orbristles, in the ferrule la (which consists, by way of example, ofpolypropylene or the co-polymer known under the trade name Hostaforrn")is a metal ring 6 (FIGS. 3, 4). The inner surface 7 lies flush with theinner surface 8 of the plastics ferrule la. By reason of this design,the tuft 5 of hair or bristles, in the holding region 4, is located indirect contact against the inner surface 7 of the ring 6 and isanchored, by means of adhesive, securely to the metal ring 6.

The plastics ferrule 11: which is formed as a body of revolution, asshown in FIGS. 3 and 4, together with the metal ring 6 and the glued-intuft 5 of hair or bristles, can be cold-formed, by application ofpressure at two opposing sides of the free end of the ferrule la to formit into the'flat configuration shown in FIG. 5.

Although the above description relative to FIGS. 2 to 5 of the drawingsdisclose a preferred embodiment of the students or artists paintingbrush of the invention, and the manner in which it is made, it is to beunderstood that variations may be made to the details thereof withoutdeparting from the scope of the invention as defined by the followingclaims.

I claim:

I. A painting brush comprising: a handle, a ferrule of plastics materialsecured to one end of the handle and having an inner surface providedwith an annular ringreceiving recess, a bristle tuft secured by one endinto the ferrule, and a metal annular ring located in the recess of theferrule and having an inner surface flush with the inner surface of theferrule and surrounding the one end of the bristle tuft and serving toanchor the bristle tuft to the ferrule.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No.3,751,751 Dated August 14, 1973 Inventor(s) Georg Karl It is certifiedthat error-appears in the above-identified patent and that said LettersPatent are hereby corrected as shown below:

On title page, at; item [76 7 change "George Karl" to "Georg Karl SignedI ahd sealed this 20th day of November 1973.

(SEAL) Attestt EDWARD M.FLETCHER,JR. RENE D. TEGIMEYER Attesting OfficerActing Commissioner of Patents FORM PO-105O (10 69) USCOMM-DC 60376-P69as. GOVERNMENT PRINTING OFFICE rises 0-366-334.

1. A painting brush comprising: a handle, a ferrule of plastics materialsecured to one end of the handle and having an inner surface providedwith an annular ring-receiving recess, a bristle tuft secured by one endinto the ferrule, and a metal annular ring located in the recess of theferrule and having an inner surface flush with the inner surface of theferrule and surrounding the one end of the bristle tuft and serving toanchor the bristle tuft to the ferrule.